Answer: 50%
Step 1 add 18+20 = 38
Step 2 add 10+9= 19
Step 3 divide 19 by 38 = 2
So if would be half which is equal to 50%
Answer:


Step-by-step explanation:
we know that
The area of rectangle is equal to

where
L is the length of rectangle
W is the width of rectangle
In this problem we have

substitute

Apply distributive property


Hello,
Please, see the attached file.
Thanks.
Answer:
Step-by-step explanation:
Note that one equation has -2y and the other has +2y. The fastest solution is to add the equations together. The two terms will cancel out, eliminating the y terms.